/*
 * Copyright 2012 Finbudget.com
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package finbudgettable.client.ui.grid.cell;

import com.google.gwt.cell.client.Cell;
import com.google.gwt.cell.client.ValueUpdater;
import com.google.gwt.dom.client.BrowserEvents;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.NativeEvent;

import java.util.HashSet;
import java.util.Set;

public class ContextMenuHelper<C> implements BrowserEventListener<C> {

    private static final Set<String> consumedEvents = new HashSet<String>();

    static {
        consumedEvents.add(BrowserEvents.CONTEXTMENU);
    }

    private final ContextMenu<C> contextMenu;

    public ContextMenuHelper(ContextMenu<C> contextMenu) {
        this.contextMenu = contextMenu;
    }

    @Override
    public boolean onBrowserEvent(Cell.Context context, Element parent, C value, NativeEvent event, ValueUpdater<C> cValueUpdater) {
        String eventType = event.getType();
        if (BrowserEvents.CONTEXTMENU.equals(eventType)) {
            contextMenu.show(parent.getAbsoluteLeft() + 10, parent.getAbsoluteTop() + 10, parent, value);
            event.preventDefault();
        }
        return false;
    }

    @Override
    public Set<String> getConsumedEvents() {
        return consumedEvents;
    }
}
